127 lines
4.3 KiB
C
127 lines
4.3 KiB
C
/*
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This file is part of TALER
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Copyright (C) 2020 Taler Systems SA
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TALER is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3, or (at your option) any later version.
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TALER is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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TALER; see the file COPYING. If not, see <http://www.gnu.org/licenses/>
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*/
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/**
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* @file secmod_signatures.c
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* @brief Utility functions for Taler security module signatures
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* @author Christian Grothoff
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*/
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#include "platform.h"
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#include "taler_util.h"
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#include "taler_signatures.h"
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void
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TALER_exchange_secmod_eddsa_sign (
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const struct TALER_ExchangePublicKeyP *exchange_pub,
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struct GNUNET_TIME_Absolute start_sign,
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struct GNUNET_TIME_Relative duration,
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const struct TALER_SecurityModulePrivateKeyP *secm_priv,
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struct TALER_SecurityModuleSignatureP *secm_sig)
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{
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struct TALER_SigningKeyAnnouncementPS ska = {
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.purpose.purpose = htonl (TALER_SIGNATURE_SM_SIGNING_KEY),
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.purpose.size = htonl (sizeof (ska)),
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.exchange_pub = *exchange_pub,
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.anchor_time = GNUNET_TIME_absolute_hton (start_sign),
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.duration = GNUNET_TIME_relative_hton (duration)
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};
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GNUNET_CRYPTO_eddsa_sign (&secm_priv->eddsa_priv,
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&ska,
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&secm_sig->eddsa_signature);
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}
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int
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TALER_exchange_secmod_eddsa_verify (
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const struct TALER_ExchangePublicKeyP *exchange_pub,
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struct GNUNET_TIME_Absolute start_sign,
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struct GNUNET_TIME_Relative duration,
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const struct TALER_SecurityModulePublicKeyP *secm_pub,
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const struct TALER_SecurityModuleSignatureP *secm_sig)
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{
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struct TALER_SigningKeyAnnouncementPS ska = {
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.purpose.purpose = htonl (TALER_SIGNATURE_SM_SIGNING_KEY),
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.purpose.size = htonl (sizeof (ska)),
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.exchange_pub = *exchange_pub,
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.anchor_time = GNUNET_TIME_absolute_hton (start_sign),
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.duration = GNUNET_TIME_relative_hton (duration)
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};
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return
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GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_SM_SIGNING_KEY,
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&ska,
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&secm_sig->eddsa_signature,
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&secm_pub->eddsa_pub);
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}
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void
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TALER_exchange_secmod_rsa_sign (
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const struct GNUNET_HashCode *h_denom_pub,
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const char *section_name,
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struct GNUNET_TIME_Absolute start_sign,
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struct GNUNET_TIME_Relative duration,
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const struct TALER_SecurityModulePrivateKeyP *secm_priv,
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struct TALER_SecurityModuleSignatureP *secm_sig)
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{
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struct TALER_DenominationKeyAnnouncementPS dka = {
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.purpose.purpose = htonl (TALER_SIGNATURE_SM_DENOMINATION_KEY),
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.purpose.size = htonl (sizeof (dka)),
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.h_denom_pub = *h_denom_pub,
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.anchor_time = GNUNET_TIME_absolute_hton (start_sign),
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.duration_withdraw = GNUNET_TIME_relative_hton (duration)
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};
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GNUNET_CRYPTO_hash (section_name,
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strlen (section_name) + 1,
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&dka.h_section_name);
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GNUNET_CRYPTO_eddsa_sign (&secm_priv->eddsa_priv,
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&dka,
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&secm_sig->eddsa_signature);
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}
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int
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TALER_exchange_secmod_rsa_verify (
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const struct GNUNET_HashCode *h_denom_pub,
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const char *section_name,
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struct GNUNET_TIME_Absolute start_sign,
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struct GNUNET_TIME_Relative duration,
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const struct TALER_SecurityModulePublicKeyP *secm_pub,
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const struct TALER_SecurityModuleSignatureP *secm_sig)
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{
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struct TALER_DenominationKeyAnnouncementPS dka = {
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.purpose.purpose = htonl (TALER_SIGNATURE_SM_DENOMINATION_KEY),
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.purpose.size = htonl (sizeof (dka)),
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.anchor_time = GNUNET_TIME_absolute_hton (start_sign),
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.duration_withdraw = GNUNET_TIME_relative_hton (duration)
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};
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GNUNET_CRYPTO_hash (section_name,
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strlen (section_name) + 1,
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&dka.h_section_name);
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return
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GNUNET_CRYPTO_eddsa_verify (TALER_SIGNATURE_SM_DENOMINATION_KEY,
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&dka,
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&secm_sig->eddsa_signature,
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&secm_pub->eddsa_pub);
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}
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/* end of secmod_signatures.c */
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